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Re: [IP] Contact lens measures glucose
Is it just me being obtuse, or is anyone sick of hearing about all the
alternatives do diabetis. All I want is the CURE.
>Experimental product detects blood sugar in tears, study says
>By Jacqueline Stenson
>PHILADELPHIA, June 25 People with diabetes may one day wear contact
>that not only correct their vision but also painlessly measure their blood
>sugar, preliminary research suggests.
> SCIENTISTS AT CIBA Vision, a contact lens manufacturer, have
>developed a disposable lens that detects levels of blood sugar, or glucose,
> To get a reading, the patient shines ordinary light on the eyes
>a small hand-held device that also records the glucose level in the tears,
>researchers said. The light interacts with fluorescent molecules in the
>that bind to glucose. The higher the glucose, the greater the fluorescence.
> A pilot study presented here Monday at the annual meeting of the
>American Diabetes Association found that the system was almost as accurate
>as the standard finger-prick test that diabetics are advised to perform
>several times a day to ensure that their blood sugar is in good control.
> We got very good correlation between blood glucose and the
>fluorescence reading in the contact lens, said study author Carol Morris,
>researcher at CIBA Vision in Atlanta.
>HOPE FOR NEEDLE-FREE TESTING
> The study was small involving just nine diabetic patients and
>non-diabetic controls. And subjects only wore the lenses for four hours.
>the researchers are hopeful that the lenses may one day offer patients a
>new, pain-free way to measure their glucose levels.
> Were very optimistic, but this is preliminary, Morris said. The
>next step would be to run a large clinical study.
> No side effects were observed and the patients didnt mind shining
>the light in their eyes, she said.
> On the downside, the new lenses didnt pick up high glucose levels
>fast as the blood tests. There was an average delay of about 7 minutes,
>according to Morris.
> In addition, disco dancers may find one aspect of the lenses
>undesirable or amusing. Just as white clothing tends to glow under party
>lights, so may the lenses, Morris said.
> Diabetes afflicts an estimated 16 million Americans. The more common
>form of the disease, known as type 2 diabetes, results when the body does
>not make enough, or fails to properly use, insulin. Cases of type 2
>are soaring due to increasing obesity and sedentary lifestyles.
> Type 1 diabetes, an autoimmune condition that generally develops in
>childhood and runs in families, makes up 5 percent to 10 percent of cases.
>People with type 1 diabetes do not produce insulin because their immune
>system attacks the insulin-producing cells in the pancreas. Insulin is
>necessary for cells to convert glucose into energy. When insulin is
>unavailable, blood levels of glucose build up.
> The new contact lens is part of a concerted effort among
>to create needle-free care for diabetics, said Dr. David Klonoff,
>editor-in-chief of the journal Diabetes Technology & Therapeutics and a
>clinical professor of medicine at the University of California, San
> Klonoff said the CIBA lens is promising, but more studies are needed
>to see how well it works and if its safe.
> Already on the market is GlucoWatch, a wristwatch-like device that
>detects glucose through the skin. While reducing the number of times a
>patient needs to do the finger tests, the device has not been proven
>effective enough to completely replace them.
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